need help - Portuguese-English translation / sewing input

do you remember this pattern I was going to try out?

I finally got around to buy fabric, and cut all the pieces.

then went to a couple different online free translating sites to translate the instruction for the pants.

although it is all in a weired grammar and wording, I managed to figure out the most part.

however I am stuck with this following part of the instruction:

•Una os fundos da frente e das costas do bolso com uma costura pelas laterais.
•Una os fundos externo e interno do bolso, direito sobre direito, com uma costura pelas bordas externas.
•Prenda a frente nas laterais das costas, coincidindo os números 5 e 6 de montagem. Deixe livres as aberturas inferiores.
•Costure as palas nas bordas superiores das costas. Pesponte, pelo direito, rente às bordas inferiores das palas, prendendo as folgas no avesso.

there is a cool pocket detail on these pants.

and if you look at the diagram of the pants, it looks like there isn't any overstitch on the bottom part of the back pocket.

(sorry for the dark photo!)

from the wacky Internet translation, and translation my sis(who studied Portuguese in University) did for me,

it seems like the bottom of the pocket is left open.

but then, the pockets are not functional... which doesn't make sense to me...

maybe it's just for the look??

so here I am, still lost in translation, desperately needing a help...

if any of you know Portuguese and could tell me how the back pockets are done, I'll most appreciate your help!

or if any seamstresses out there have any input for me, yes yes enlighten me please!!